1. Division of Epidemiology, School of Public Health, University of California Berkeley, USA
2. Department of Epidemiology and Biostatistics, University of California San Francisco, USA
3. Graduate School of Education, University of California Riverside, USA
4. Department of Public Health, School of Social Sciences, Humanities, and Arts, University of California Merced, USA
5. Department of Family and Community Medicine, University of California San Francisco, USA